Driving mechanism.



WITNESSES C. 0. COONS.

omvme MECHANISM.

APPLICATION FILED 1AN.29. 1915.

Patented Aug. 20, 1918. 2 SHEETS-SHEET 1.

l H i mvemoa fiarwa 0. 600715,

ATTORNEY C. O. COONS.

DRIVING MECHANISM.

APPLICATION FILED JAN-29, 1916.

1927mm Patent/ed Aug. 20, mm

2 $HEETS-SHEET 2.

WITNESSES ATTORNEY oneness Q. CQQHS, QB QPEKNGBIELD, mmors nnrvnre arncmrsm.

antenna.

Speciflcatton'or matters Patent.

Patented Aug. 20, 191%.

Application and m y so, new. serial m. 75,184.

To all whom it mag concern:

Be it hown that I, GHARLES' 0. Coons, a citizen of the United States, residing at Springfield, in the county of Sangamon and State of Illinois, have invented certain new and usefullmfirovements in Driving Mechanism, of whic tion.

This invention relates to a driving mechanism and more particularly has for its object the provision of an improved mechanism wherein an invariable speed is constantly furnished. I

The primary object of the invention, re sides in the revision of mechanism wherein driving an driven members are supplied, with means for connecting the said members, the means being automatically Had iusted so that any variation in the speed of the following is a specificathe driving members may be compensated for. 7

it it also contemplated bythe' construction to provide a novel driving mechanism,

which may be adapted for operating the shutter of a motion icture projector, wherein, itis especially esirable, that the said shutter'be operated at a uniform speed, in order to prevent the noticeable fiickerin All of the foregoing together with additional advantageous details and arrangements of the parts of the preferred embodiment of my invention will be clear from the specific description hereinafter contained, when read in connection with the -accom panying drawings forming a part thereof, wherein said embodiment of the invention is illustrated for the purpose of. facilitating a full understanding ofthe present. improvemerits. j w

Reterringtothedra I Figure 1 is a side elevation showing the arrangementot the various gearing-s and partly in section.

Fig. 2 is a horizontal section through the mechanism. a

Fig. 3 is a detail view partly in section taken on the line 33 .of Fig; 1, and

Fig. i is a fragmentary view in detail and partly in section taken on the line H of F1 1. Re arding now more particularly to the drawings, and in connection with which like reference characters refer to correspondin parts throughout the several views thereo l is a-base for supporting a frame memher 2 provided with leg portions 3 and 4.,

taken I positionacentrifugal governor s which are secured to the base, as shown at 5 and 6 by suitable fastenin devices and 7 1s a vertical standard forme integral with the frame having a bifurcated portion 8 arranged thereon, the gurpose of which shall be hereinafter descri ed 9 is a main driving gear carried by a shaft 10 arranged transversely of the frame 2 and provided with a squared end portion 10' and supported in suitable bearings as at 11 therein, the gear wheel being keyed to'the shaft by means of a screw 1201' other securing means, assing through a collar 13 formed upon t e gear 9. Positioned adjacent the gear 9 and keyed to the shaft 10, in some suitable manner, is a bevel gear 14 an si adaptedi for lagitation therewithg.ed

upporte in an 'ngs" 15 arran u on one end of the bifurcated portion ,8, l a shaft 16 having keyed thereto a bevel gear 17, which is positioned adjacent the bevel gear 14 and constantly in mesh therewith. In a order to provide for speed gove means own in an entirety at 18 upon the shaft 16, the

' same bein provided with a sliding collar 19,.

keyed to t e shaft as shown at 20, the key traveling within an elongated groove 21 formed in the shaft 16 so as to allow for vertical movement of the collar and also to connect the same for rotation with the shaft. The collar has pivotally secured thereto by means of ears 22 the conventional form of weighted members 23 used in connection with a centrifugal speed governor. 24 is a collar portion formed integral with one end of the shaft 16 and is also provided with ears 25, similar tothose as shown at 22, for pivotallyconnecting the weighted members 23 therewith. 26 IS an elongated slot arranged in the shaft 16, the shaft being provided with a coaxial bore 27 threaded in: teriorly, the said bore communicating with the elongated slot 26 and arranged centrally of the collar. portion 24., 28 is a thumb screw adapted to besreceived or turned into engagement with the interiorly threaded bore, and havin arranged at one end thereof a cross piece 29, which is received within the elongated slot 26 and movable therein, and 36 1s a coiled spring arranged about the shaft 16, one end thereof bearing against the cross piece 29 and the remaining end in enga ment with the slidable collar 19. It may e also mentioned. that a series of graduations 31 may be placed upon the neraeaa Having thus described the invention what I claim is 1. Power transmitting mechanism, including a driving member, a driven member intergeared with said driving member, a disk carried on and driven by said driven member, a power transmitting shaft arranged parallel to one surface of said disk, a slidable friction gear mounted on said shaft, governor means driven from said driving element, a pivotal adjustable rod connected with said governor means and said gear whereby the gear will be automatically shifted upon movement of the governor means to various positions of engagement with said disk for transmitting power at a uniform velocity, and means engaged with said governor means for adjusting the same.

2. .A power transmitting mechanism including a driving member, a driven member intergeared' with said driving member, a disk carried on and driven by said driven member, a power transmitting shaft arranged parallel to one surface of said disk, a slidable friction gear mounted on said shaft, governor means driven from said driving element, a pivotal body having a central bore extending therethrough, an arm slidably mounted in each end of said body, means connecting said arm to said governor means and said gear, whereby the gear will be automatically shifted upon movement of I the governor means to various positions of all) engagement with said disk for transmitting power at a uniform velocity, and means engaged with said governor means for adjusting the same.

3. A power transmitting mechanism including a driving element, a driven member intergeared with said driving element, a disk carried on and driven by said driven member, a power transmitting shaft arranged parallel to one surface of said disk, a slidable friction gear mounted on said shaft, governor means driven from said driving element, a pivotal body having) a bore extending therethrough, arms slida ly mounted in the ends of said bore, and engaging said governor means of said gear, whereby the gear will be automatically shifted upon movement of the governor means to various positions of engagement with said disk, for transmitting power at a uniform velocity.

4. A power transmitting mechanism including a driving element, a driven member intergeared with said driving element, a disk carried on and driven by said driven memher, a power transmitting means arranged parallel to one surface of said disk, a slidable friction gear mounted on said shaft, governor means driven from said driving element, a pivotal adjustable rod connected with said governor means and said gear whereby the gear will be automatically shiftdrlven by said main gear, a governor ele-- ment mounted upon said last mentioned shaft, a screw carried by said last mentioned shaft, a spring bearing upon said governor means, a plate carried by said last mentioned shaft and held in engagement with said spring by said set screws for allowing the tension of said spring to be adjusted for adjusting said governor means, and means connecting said governor means to said friction disk for automatically transmitting powervat a uniform velocity.

6. A power transmitting mechanism including a driving means and a driven means, a governor means connected to said driving means, a pivotal body having a bore extending therethrough, arms slidably mounted in the ends of said bore and engaging said .governor means and said driven means,

whereby said driven means will be automatically operated upon movement of the governor means by movement of said body and arms, thus transmitting power at a uniform velocity.

7. A power transmitting mechanism including a driving means and a driven means, a governor means connected to said driving means, a shaft carried adjacent said driving means, said shaft having a longitudinal slot, a set screw carried by said shaft and projecting into said slot, a spring bearing upon said governor means, a plate carried within said slot and held in engagement with said spring by said set screw for allowing the tension of the said spring to be adjusted for adjusting said governor means, and means connecting said governor means to said driven means and coiiperating with said governor means and driven means for automatically transmitting power at a uniform velocity.

In testimony whereof I aflix my signature in presence 0 two witnesses.

CHARLES O. COON S. Witnesses:

CUS'I'ER DAN THEOBAUGH, J OHN Lmnsar. 

